National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Altoona - Blair County Airport (KAOO)

Lat: 40.3°NLon: 78.32°WElev: 1467ft.

Partly Cloudy

72°F

22°C

Humidity 68%
Wind Speed W 8 mph
Barometer 30.09 in (1017.8 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 20 May 7:53 am EDT
Extended Forecast for

2 Miles ENE Williamsburg PA

  • Today

    Today: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. High near 80. Northwest wind 6 to 9 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Chance
    Showers then
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms. Cloudy, with a low around 52. North wind 3 to 7 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 52 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, mainly before noon. Mostly cloudy, with a high near 67. Northeast wind around 6 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    High: 67 °F

    Chance
    Showers then
    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 49. Light northeast wind.

    Low: 49 °F

    Mostly Cloudy

  • Friday

    Friday: Rain, mainly after 2pm. High near 60. Southeast wind 5 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 60 °F

    Chance Rain
    then Rain

  • Friday Night

    Friday Night: Rain. Low around 48. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

    Low: 48 °F

    Rain

  • Saturday

    Saturday: Rain. High near 56. Chance of precipitation is 100%.

    High: 56 °F

    Rain

  • Saturday Night

    Saturday Night: Showers. Low around 50. Chance of precipitation is 80%.

    Low: 50 °F

    Showers

  • Sunday

    Sunday: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 72. Chance of precipitation is 60%.

    High: 72 °F

    Showers
    Likely

Detailed Forecast

Today
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. High near 80. Northwest wind 6 to 9 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms. Cloudy, with a low around 52. North wind 3 to 7 mph. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers, mainly before noon. Mostly cloudy, with a high near 67. Northeast wind around 6 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Mostly cloudy, with a low around 49. Light northeast wind.
Friday
Rain, mainly after 2pm. High near 60. Southeast wind 5 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Rain. Low around 48. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Saturday
Rain. High near 56. Chance of precipitation is 100%.
Saturday Night
Showers. Low around 50. Chance of precipitation is 80%.
Sunday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 72. Chance of precipitation is 60%.
Sunday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
Memorial Day
Showers likely. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 80. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Williamsburg PA
 40.47°N 78.18°W (Elev. 1053 ft)
Last Update:
8:05 am EDT May 20, 2026
Forecast Valid:
8am EDT May 20, 2026-6pm EDT May 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation